Java Reference
In-Depth Information
iif
(
av
.
length
==
0
)
new
new
ScanStringTok
(
new
new
InputStreamReader
(
System
.
in
)).
process
();
else
else
for
(
int
int
i
=
0
;
i
<
av
.
length
;
i
++)
new
new
ScanStringTok
(
av
[
i
]).
process
();
}
/** Construct a file scanner by name */
public
public
ScanStringTok
(
String fileName
)
throws
throws
IOException
{
is
=
new
new
LineNumberReader
(
new
new
FileReader
(
fileName
));
}
/** Construct a file scanner by existing Reader */
public
public
ScanStringTok
(
Reader rdr
)
throws
throws
IOException
{
// no point adding another level of buffering, if already
// being buffered...
iif
(
rdr
instanceof
instanceof
LineNumberReader
)
is
= (
LineNumberReader
)
rdr
;
else
else
is
=
new
new
LineNumberReader
(
rdr
);
}
protected
protected
void
void
process
() {
String s
=
null
null
;
try
try
{
while
while
((
s
=
is
.
readLine
()) !=
null
null
) {
StringTokenizer st
=
new
new
StringTokenizer
(
s
,
"@"
,
true
true
);
String user
= (
String
)
st
.
nextElement
();
st
.
nextElement
();
String host
= (
String
)
st
.
nextElement
();
System
.
out
.
println
(
"User name: "
+
user
+
"; host part: "
+
host
);
// Presumably you would now do something
// with the user and host parts...
}
}
catch
catch
(
NoSuchElementException ix
) {
System
.
err
.
println
(
"Line "
+
is
.
getLineNumber
() +
": Invalid input "
+
s
);
}
catch
catch
(
IOException e
) {
System
.
err
.
println
(
e
);
}
